Hi,
I want to draw a graphics my chart needs three canvas , one for graphic(data), two for rules (left and bottom of chart canvas) as margins.
I want to know how to initialize three canvas each one with it own data’s !
each one has its own properties, events, methods… (open, paint etc)
each canvas should take care of its own needs.
so either I do not understand your question… or you do not understand objects?
You also don’t necessarily need three canvases. You could use one and then use Graphics.Clip to isolate them when drawing.
[quote=337604:@Dave S]each one has its own properties, events, methods… (open, paint etc)
each canvas should take care of its own needs.
so either I do not understand your question… or you do not understand objects?[/quote]
This is the structure of the program :
The in the init method is coded the default setting of the cnvPlot
'Initialize default settings of the Canvas
PBuffer = new Picture(CnvPlot.Width, CnvPlot.Height,32)
PBuffer.Graphics.DrawRect(0,0,CnvPlot.Width, CnvPlot.Height)
…
I need to initialize also two other canvas.
How do i write on the margin with out a canvas object ?
just use offsets to draw starting inset from whatever edges you want margins on
I think you should consider what Greg O’Lone said. Put all the drawing in one canvas. It’s faster and foolproof.
Yes i found doc about clip, many thanks every body !
link text